Global Patent Index - EP 3607397 A4

EP 3607397 A4 20210120 - DYNAMICALLY TUNABLE, SINGLE PIXEL FULL-COLOR PLASMONIC DISPLAY, METHOD AND APPLICATIONS

Title (en)

DYNAMICALLY TUNABLE, SINGLE PIXEL FULL-COLOR PLASMONIC DISPLAY, METHOD AND APPLICATIONS

Title (de)

DYNAMISCH ABSTIMMBARE VOLLFARBIGE PLASMONISCHE EINZELPIXEL-ANZEIGE, VERFAHREN UND ANWENDUNGEN

Title (fr)

AFFICHAGE PLASMONIQUE PLEINE COULEUR À PIXEL UNIQUE ACCORDABLE DYNAMIQUEMENT, PROCÉDÉ ET APPLICATIONS

Publication

EP 3607397 A4 20210120 (EN)

Application

EP 18781384 A 20180404

Priority

  • US 201762481178 P 20170404
  • US 2018026045 W 20180404

Abstract (en)

[origin: US2018284509A1] Dynamic, color-changing surfaces have many applications including but not limited to displays, wearables, and active camouflage. Plasmonic nanostructures can fill this role with the advantages of ultra-small pixels, high reflectivity, and post-fabrication tuning through control of the surrounding media. However, while post-fabrication tuning have yet to cover a full red-green-blue (RGB) color basis set with a single nanostructure of singular dimensions, the present invention contemplates a novel LC-based apparatus and methods that enable such tuning and demonstrates a liquid crystal-plasmonic system that covers the full red/green/blue (RGB) color basis set, as a function only of voltage. This is accomplished through a surface morphology-induced, polarization dependent, plasmonic resonance and a combination of bulk and surface liquid crystal effects that manifest at different voltages. The resulting LC-plasmonic system provides an unprecedented color range for a single plasmonic nanostructure, eliminating the need for the three spatially static sub-pixels of current displays. The system's compatibility with existing LCD technology is possible by integrating it with a commercially available thin-film-transistor (TFT) array. The imprinted surface readily interfaces with computers to display images as well as video.

IPC 8 full level

G02F 1/1337 (2006.01); G02F 1/139 (2006.01); G02F 1/19 (2019.01); G02F 1/33 (2006.01)

CPC (source: EP US)

G02B 5/008 (2013.01 - EP); G02F 1/133533 (2013.01 - EP US); G02F 1/133604 (2013.01 - US); G02F 1/1395 (2013.01 - US); B82Y 20/00 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 10175547 B2 20190108; US 2018284509 A1 20181004; CN 110637253 A 20191231; EP 3607397 A1 20200212; EP 3607397 A4 20210120; WO 2018187444 A1 20181011

DOCDB simple family (application)

US 201815945184 A 20180404; CN 201880023442 A 20180404; EP 18781384 A 20180404; US 2018026045 W 20180404